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Finding the Fourth Proportional to 438,681.10, 605,381.85 and 237,477.10

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Solution

The fourth proportional to 438,681.10, 605,381.85 and 237,477.10 is: 327,719.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,681.10 : 605,381.85 = 237,477.10 : x
  2. Step 2: Convert to fraction form
    438,681.10/605,381.85 = 237,477.10/x
  3. Step 3: Cross multiply
    438,681.10x = 605,381.85 × 237,477.10
  4. Step 4: Simplify right side
    438,681.10x = 143,764,326,130.64
  5. Step 5: Solve for x
    x = 143,764,326,130.64/438,681.10
  6. Step 6: Final answer
    x = 327,719.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.